Motor-cooling system for self-propelled vehicles



C P. BYRNES. SYSTEM FOR SELF FROFELLED F LED JAN JEHiCLES.

MOTOR COOLING SHEETS'SHEET 1 m M En WM WINESSES 2 SHEETS'SVHEIET 2 VEHICLES.

C. P. BYRNES.

Jan. 9, 1923.

F PROPELLED MoToR COOLING SYSTEM FOR SEL FILED JAN. 3.

INVENTOR the radiator.

, Patented Jan. 9., i923.

UNITED STATES CLARENCE P. BYRNES. or SEWICKLEY.QENNSYLVANIA.

Moron-comma SYSTEM FOR sELr-PnorEL ED VEHICLES.

, Application filed January 13. 1918. Serial No. 210.205.

lie it known that l. (*Lwlu-JNci: l".. Vinmacs. a citizen of the lnited States oi" l\u ieri(ai. resillling at Sewic'klcy. in the col-mtj" of All 'lcgheny and State of lennsylvania. have invented a new and uset'ul IIn n'ovenwnt in Motor-C'ooling Systems for Self- 1"i'o pel l-ed Vehicles. of which the to'llo'-\-\"l-H'I is a full. clear, and exact description. retcreiue being had to't'he zwccnnpanyingdrawings. *iorming part of this specilii tion. in which i Figure 1. is a. diagramnlatic plan view partly .broken away sl-io'wing one term of the invention;

Figure is a similar view showii'ig another form of the invent-ion; and I "Figure 3 is a similar viewshowing a further modified form applied to V-shalped -enguns.

The invention relates to the'd-rawing of air through the "adia tor of a self-propelled vehicle, having a water-cooled engine connected with the radiator.

Heretofore, a motor-driven fan has been used to'draw air through the radiator to a sufl icicnt amount to keep the engine cooled to the desireddegree. This fan, particularly at certain speeds, consumed a considerable amount of power developed by the motor.

The present invention aims to do away with the tan and provides an air injector system which is applied to the vehicle in such a manner as to not interfere with the usual parts thereof, and utilizes the exhaust gases from the motor to draw air through In the preferred terms, an air chamber or chambers is provided back oit' the radiator and around the motor and from which air injectors lead at the sides of the fly wheel for the drive shaft. the motive fluid tor the air injectors being supplied from the exhaust having pipes forming part of the an injector system.

In the drawings. referring to Figure 1, 2 represents the motor and 3 the radiator of an automobile of ordinary type. 4 is the fly wheel and 5 'a portion of the drive shaft. The motor 2 is set in the air chamber 6, which is preferably substantially air-tight. It may be closed at the rear by thepartition 7 and at the top and sides by the usual hood structure 8. which in this form is n'er'era'bly iinperforate. not having the usual lou'vres or air outlet apertures. The bottom of the chamber may be formed by the usual pan or throu gh gases.

crank case. and the front is. of course. .l'ormcd by the radiator itself.

- in the partition T at the sides ol the ily '\\"hcels are arranged air injectors '9. into \vhich lead the jet pipes 10. connected with the exhaust pipes of the motor cylinders. The injectors may lead back to a mulller or niu-tiiersf When the motoris in operation. air be sucked back through the radiator and the closed engine chamber and thence back through the injector pipes to the mufflers. The weight of air drawn :through will. of course. depend on the speed of the motor and the volume of exhaustwill . n Figure 2, I show a form similar to that ot' Figure 1, except that the motor is cased in so that the engine chamber in the rear of the radiator 3 need not be air-tight. In this case. longitudinal partitions 11 lead rear- Wardly from the radiator on each side of the motor. 'these'joining at the front at the center of the radiator so asto divide the air into two currents,each'ot which passes back to its air injector 9. The channels 12 formed partly by the partitions will, of course be air-tight, and the engine may be reached through movable closures in these partitions. or by hinging the channels at the front so that eaelncan be swung back. In this case, the exhaust pipes are shown as merging into a single exhaust pipe at each side marked The air injectors may also be placed farther forward, one at-each side of the engine. the exhaust pipes. in this case, being led from the front of the engine structure; so "that the combined air and waste gases pass back at each side of the engine and past the fly wheel. In this case the air chambers at the rear of the radiator may be simply large enough to properly divide the radiator and contain the exhaust injectors.

In Figure 3, I show a form similar to Figure 1, except that the engine is a V- shaped engine there being an exhaust pipe 10 from each set of cylinders leading back to the injector 9 The exhaust pipes are shown :as located in the trough between the sets of engine cylinders. though they may be outside, if desired.

The exhaust pipes may also lead outwardly through the hood, if desired. In this case, as in Figure 1. the air compart mentcontaining the motor should be substantially air-tight. so that all air sucked in by the injectors must pass through the ra-- diator and thus cool the Water. which. in turn. serves to cool the motors.

The ad 'antages of my invention \vill'be. obvious to those skilled in th art. since the usual suction tan is discarded. with the consequent ad antages of greater simplicity and also less less oi power.

The water-cooled motor may be of any desired type as may also the radiator: the air chamber between the radiator and the injectors may be varied. and many other changes may be made. without departing from my invention.

I claim:

1. In a cooling system for motor vehicles, a multi-cylinder internal-combnstion watercooled motor. a radiator connected to the Water-cooling system for the motor, an air chamber arranged at one side. of the radiator to receive the air passing therethrough, said air chamber having a plurality of Yenturi t'ormed air outlets. the exhaust channels for the engine being combined into a plurality of exhaust out-lets less than the number of motor cylinders. each air Yenturi outlet having an exhaust outlet substantially concentric therewith, substantially as described.

2. In a cooling system for motor vehicles. a water-cooled motor at t-IltPfIOIlt ot the chassis. a radiator in front. of the motor and connected with the water-cooling system. an air chamber at the rear of the radiator, and

a motor exlj aust injcwtm' system, having a plurality of injectors leading rcaruardly at opposite sides of the motor. substantially as described.

3. Ina cooling system for motor Vehicles,

a water-cooled motor at the front of the chassis. a radiatorconnected to the Watercooling system for the motor and located in front of the motor. an air.cha1'nber at the rear otthe radiator and at least partially enclosing the motor. and a motor exhaust injector system arranged to draw air through the radiator. said injector system having injectors leading from the sideportions of the air chamber. substantially as described.

-l. In a motor-propelled yehicle. a radiator in fronto't' the chassis. an air chamber system at the rear of the radiator and at least partially enclosing the motor. injector pipes leading from the air chamber at opposite leading from the motor to the air injectors. substantially as described. f

In a cooling system for motor vehicles. a water-Cooled motor at the front of the chassis. aradiator in front-of the motor-,and a plurality o1 air injectors located in the rear of the radiat at opposite sides of the engine ach connected with theengine exhaust; substantially as described. I

In testimony whereof. Ihave hereunto set my hand.

sides of the ,tly wheel. and exhanst pipes CLARENCE P. BYRN as. 

